Finding the Fourth Proportional to 144,349.13, 199,193.73 and 79,814.63
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Solution
The fourth proportional to 144,349.13, 199,193.73 and 79,814.63 is: 110,139.72
Step by Step Solution
- Step 1: Write the proportion equation
144,349.13 : 199,193.73 = 79,814.63 : x - Step 2: Convert to fraction form
144,349.13/199,193.73 = 79,814.63/x - Step 3: Cross multiply
144,349.13x = 199,193.73 × 79,814.63 - Step 4: Simplify right side
144,349.13x = 15,898,572,862.30 - Step 5: Solve for x
x = 15,898,572,862.30/144,349.13 - Step 6: Final answer
x = 110,139.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.